S-90675A235 3/8"-24 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the integrated external-tooth lock washer system, preventing loosening in high-stress environments
• Enhanced corrosion protection with zinc-plated steel construction, extending service life in harsh industrial conditions
• Precise thread engagement with UNF fine threading and Class 2B fit, ensuring reliable, secure fastening without cross-threading
• Easy installation and removal using standard 9/16" hex profile, compatible with common wrench tools for efficient maintenance
• Heavy-duty locking performance combining steel lock washer with right-hand threading for maximum torque retention
• Durable material composition using steel throughout both nut and washer components for consistent strength under load
• Versatile application compatibility designed for automotive, machinery, and construction sectors requiring vibration-resistant fastening solutions

Professional Applications & Engineering Value

This 3/8"-24 UNF fine thread locknut addresses critical vibration-induced loosening challenges in dynamic industrial environments. The zinc-plated steel construction provides essential corrosion resistance while maintaining structural integrity under heavy loads. The integrated external-tooth lock washer system creates positive locking action by embedding teeth into mating surfaces, effectively resisting rotational forces that cause conventional nuts to fail. This engineering solution is particularly valuable for automotive assemblies, machinery frames, and construction equipment where constant motion and vibration would compromise standard fasteners. The UNF fine threading offers superior thread engagement compared to coarse threads, distributing stress more evenly across more thread contacts for enhanced fatigue resistance in demanding applications.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2B thread fit ensuring consistent thread engagement and interchangeability. The locknut features UNF (Unified National Fine) 3/8"-24 threading with right-hand direction and standard hex profile (9/16" width). Components meet industrial fastener specifications with zinc-plated steel material providing surface protection. The external-tooth lock washer (0.656" OD) is manufactured from steel for consistent locking performance. Compliant with relevant industrial standards for mechanical fasteners and suitable for applications requiring reliable vibration resistance.